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Java是什么?用来做什么?
2025-12-15 01:50:17
Java是什么?用来做什么?
Java是一种由Sun Microsystems(现为Oracle公司的一部分)在1995年首次发布的高级、面向对象的编程语言。它被设计为具有尽可能少的实现依赖性,这意味着Java编写的应用程序可以在任何支持Java虚拟机(JVM)的平台上运行,这被称为\"一次编写,到处运行\"(Write Once, Run Anywhere,WORA)的理念。
Java可以用来做很多事情,包括但不限于:
1.企业级应用:Java是构建大型企业级应用程序的常用语言,特别是在金融服务和电子商务领域。
2.Android应用开发:Java是开发Android移动应用的主要语言之一,尽管现在Kotlin也得到了广泛的使用。
3.Web开发:Java可以用于开发服务器端应用程序,使用如JavaServer Pages (JSP) 和Servlets等技术。
4.桌面应用:JavaFX和Swing等库可以用来开发跨平台的桌面应用程序。
5.大数据技术:Java在Hadoop和其他大数据技术中被广泛使用,用于处理和分析大量数据。
6.科学计算和数值分析:Java有一些库,如Numal,可以用于科学计算和数值分析。
7.游戏开发:虽然不是游戏开发的主流语言,但Java也可以用于开发一些简单的游戏和模拟。
8.物联网(IoT):Java因其跨平台的特性,在物联网设备上的应用开发中也有一定的应用。
9.云服务:Java在云服务和云基础设施的开发中也扮演着重要角色。
10.机器学习:虽然Python在机器学习领域更为流行,但Java也有一些库,如Deeplearning4j,可以用于机器学习项目。
Java因其稳定性、成熟度和跨平台能力,仍然是软件开发领域中非常重要的编程语言之一。
#后端开发
#转行IT
#it培训
#找工作啊找工作
#java
#java学习
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CONNECT:[ UseTime:0.000503s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000714s ]
SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000230s ]
SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000223s ]
SHOW FULL COLUMNS FROM `set` [ RunTime:0.000459s ]
SELECT * FROM `set` [ RunTime:0.000187s ]
SHOW FULL COLUMNS FROM `article` [ RunTime:0.000483s ]
SELECT * FROM `article` WHERE `id` = 456662 LIMIT 1 [ RunTime:0.000335s ]
UPDATE `article` SET `lasttime` = 1766192932 WHERE `id` = 456662 [ RunTime:0.013702s ]
SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000219s ]
SELECT * FROM `article` WHERE `id` < 456662 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000412s ]
SELECT * FROM `article` WHERE `id` > 456662 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000355s ]
SELECT * FROM `article` WHERE `id` < 456662 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.003618s ]
SELECT * FROM `article` WHERE `id` < 456662 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000446s ]
SELECT * FROM `article` WHERE `id` < 456662 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001226s ]
0.092854s